SAP Message BK101 - Revenue reposting from cost center to & & is not allowed

Diagnosis
You want to repost revenues.
You have entered a cost center as the only true sender object, on whichrevenues can only be posted to statistically.
As true receiver object you entered &V1& &V2&. True revenues areposted onto this account assignment object.
Such a revenue reposting is not allowed.

System Response
The document item cannot be processed by the system.

Procedure
Enter a sender object on which true revenues can also be posted. Youcan enter this object in addition to the cost center.